Lsmw overview

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detailed overview of lsmw

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  • 1. LSMW: Upload Master Data using Batch Input RecordingSummaryLSMW is the tool provided by SAP in order to upload huge amount of data from legacy file to R/3 system.This article describes in detail how to upload master data in SAP HR module. However similar steps canbe followed for other modules as well.
  • 2. LSMW: Upload Master Data using Batch Input RecordingIntroductionThe Legacy System Migration Workbench (LSMW) is a tool to transfer data from legacy systems into anR/3 System. LSMW supports a step-by-step procedure, if one step is executed and saved then next stepautomatically follows. Apart from creation of project/ subproject/ object and recording, there are 14 basicsteps included in LSMW. This article explains clearly about each and every step.Process Flow:As an example, I am showing how to upload primary address for an employee i.e. Infotype 0006 withSubtype 1.Creating Project/ Subproject and Object:Go to LSMW T.codeGive the name of the Project, Subproject and Object as desired© 2010 SAP AG 2
  • 3. LSMW: Upload Master Data using Batch Input RecordingNow place cursor in Project field and click on create and give description of each as shown below andpress enter.Recording:In menu bar, Goto Recordings (as shown below)Now, Select ‘Recordings’ and create Give recording name and descriptionNote: In recording we show path, so that the system follows the same way while uploading the data from legacy to R/3 system© 2010 SAP AG 3
  • 4. LSMW: Upload Master Data using Batch Input Recording Give Transaction code as ‘PA30’ (to maintain master data for an employee)  In Master data maintain screen, give Personnel No, infotype and subtype (if any), and click on create In Create Address screen, enter fields which you want to upload and save© 2010 SAP AG 4
  • 5. LSMW: Upload Master Data using Batch Input RecordingNow, click on Default All and save and press back© 2010 SAP AG 5
  • 6. LSMW: Upload Master Data using Batch Input RecordingNote: We are clicking ‘Default all’ button, so that all the fields which we touched during recording are included.Now recording is completed.© 2010 SAP AG 6
  • 7. LSMW: Upload Master Data using Batch Input RecordingProcessing basic steps in LSMW:Basically, LSMW need to be configured 14 basic steps. Below you will find detailed step-by stepprocedureStep 1: Maintain Object AttributesSelect this radio button and click on execute (Do same for other steps)Now, click on Display/ Change icon (do this for every step, because by default it will be display mode)Here, we are telling system that what kind recording should take into consideration while performingupload.Select ‘Batch Input Recording’ and give name as shown belowSave and back (Note: Without any user intervention, radio button will come to next step)© 2010 SAP AG 7
  • 8. LSMW: Upload Master Data using Batch Input RecordingStep 2: Maintain Source StructuresSource structures are helpful in building hierarchical relationships. While uploading the data systemalways checks highest level structure first before going for subordinate structure.Select source structure and create© 2010 SAP AG 8
  • 9. LSMW: Upload Master Data using Batch Input RecordingEnter details as shown belowSave and back.Step 3: Maintain Source FieldsHere we assign all the fields which need to upload to source structure.Click on Object Overview select table© 2010 SAP AG 9
  • 10. LSMW: Upload Master Data using Batch Input RecordingCopy the fields and length in excel sheet (for temporary)Note: exclude TABNAME and TCODE which are not required to maintain separately, system will takethese from recording we made.Make excel sheet as shown© 2010 SAP AG 10
  • 11. LSMW: Upload Master Data using Batch Input RecordingNow select ‘Maintain Source Fields’ button and executeClick on ‘table maintenance’Paste from the excel sheet which we maintained.Save and backStep 4: Maintain Structure RelationsHere we check whether structure relations between legacy and R/3 established or not.In this step there is no need to change, just save and come back.© 2010 SAP AG 11
  • 12. LSMW: Upload Master Data using Batch Input RecordingStep 5: Display Field Mapping and ConversionHere we establish the relationship between legacy and R/3 based on object fields.In menu bar, go to Extras Auto Field MappingNote: Make sure that you select your recording before auto field mappingNow accept proposal for all the fields which need to upload© 2010 SAP AG 12
  • 13. LSMW: Upload Master Data using Batch Input RecordingAfter auto field mapping complete, save and back.Step 6: Maintain Fixed Values, Translations, User-Defined RoutinesNo need to maintain this step, unless and until if there exist any user defined routines, which helpful forreusable.Step 7: Specify FilesIn this step, you specify the location of the legacy file.Note: Generally we receive legacy file in excel format, so save this file as Text (Tab delimited).Now, double click on ‘Legacy Data – On the PC (Front End)’ Save and back© 2010 SAP AG 13
  • 14. LSMW: Upload Master Data using Batch Input RecordingStep 8: Assign FilesHere, we just check whether file is assigned to source structure or not.Save and back.Step 9: Read DataHere our legacy data is readExecuteNow, next screen shows how many number of records have been read.Step 10: Display Read DataHere, we can display all for part of the data by giving line numbersCheck, whether data has been correctly fit into fields© 2010 SAP AG 14
  • 15. LSMW: Upload Master Data using Batch Input RecordingStep 11: Convert DataHere, whatever data has been read will convert to SAP standards.Execute Now, it shows how many records have been converted. It should be same as data which havebeen read in step 9.Step 12: Display Converted DataHere, converted data can be viewed for cross check.Data from the legacy file is fitting to correct fields, so we configured all prior steps without any mistake.Note: If data is not fitting correctly, then we need to cross check Step3 and Step5.© 2010 SAP AG 15
  • 16. LSMW: Upload Master Data using Batch Input RecordingStep 13: Create Batch Input SessionIn this step, we create session for batch inputMake sure you check box for ‘Keep batch input folder’ is activeExecuteStep 14: Run Batch Input SessionHere we run the batch input session which we created in step 13.Select Session and execute process© 2010 SAP AG 16
  • 17. LSMW: Upload Master Data using Batch Input RecordingHere we can choose options, how upload should be done.It is recommendable that, first 3 to 4 records upload foreground to make sure data is uploading correct,for rest of records select ‘Display errors only’.Now legacy data will we upload to Master data of employees in SAP system.© 2010 SAP AG 17